Simon Cowell reveals his `biggest fear`
London: Simon Cowell has revealed that his biggest fear is to not be relevant on X Factor as a judge.
As the 54-year-old music mogul prepares to mark his return as an X Factor judge on ITV, he admitted that his biggest fear is to "no longer being relevant", reportedly.
He added that he doesn`t care if he is liked or not, but he is concerned about being relevant.
The `Syco` boss also blasted other talent show judges who have not been at the top of the industry and manage big stars as "idiots".